Economy Research
For this Research, I've played two games that are Free-to-play games, The First Game I've played is Honka Star-Rail. When I'm play the game, I was looking for a vendor or store to buy items and cosmetic for my character but didn't find it. I then realize the store is locate on my menu bar when I follow the tutorial. Its currency are found in battle and breakable environment but since this a gatcha game, the players will use real money to buy the currency to unlock characters and money.
The next game is DC Universe Online, this game does have a vendor to shop for new clothes for my hero to wear. I earn currency by find them while taking on missions and defeating enemies. There are machines and people to interact to shop for better gears and sell items you don't need. There are also opinions to level up faster by buying it with real cash to catch up with the other players to play with them.